Tank top



FIG. 1 is a top perspective view of a tank top; showing the new design.

FIG. 2 is a front view thereof.

FIG. 3 is a back view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right side view thereof; and,

FIG. 6 is a top view thereof. 

CLAIM The ornamental design for a tank top, as shown and described. 